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Is The ELISA Test Conclusive At 147 Days Post Exposure?

Posted on Fri, 1 Jul 2016

Question: I had unprotected sex on december 11, 2015 with unknown hiv status partner and went for HIV antibody test on 35th ,73rd ,113th and 147th day. All the test results were negative. I went for whole body checkup on 147th day of my post exposure . All the results were normal. I am from XXXXXXX The test which i taken for HIV is elisa test. I dono the generation. I have rashes on my arm and back from the exposure. Do i need to test again ? Is my test at 147th day is conclusive and accurate or do i need to test after 180 days.Please tell me am scared.

Answered by Dr. Sankaranantham Murugan (37 minutes later)

Brief Answer:
You are free from HIV 1 and 2 infection.

Detailed Answer:
Hi,
Welcome to HCM.
Thanks for posting your query.
All the tests available for HIV are highly reliable to the extent of 97-98%. Tests done after 12 weeks are very much conclusive. You had HIV ELISA twice after 90 days and they were nonreactive. It means that you are free from HIV 1 and 2 infection. No further test for HIV is necessary for you.
Dr S Murugan

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Sankaranantham Murugan (9 minutes later)

Thanks for your response Doctor. Why am having skin rashes on my back Is it because of heat ? I dont need to worry about HIV right ? But in the internet it is saying that 6 month test is conclusive. Please provide me your input.

The test which I taken is HIV ELISA test . I think that have taken standard test. Test at 147 th day after my exposure is conclusive or do I need to wait for another 1 month to take the test ? Pls guide me . If possible of test result change after 147th day ?

Answered by Dr. Sankaranantham Murugan (2 hours later)

Brief Answer:
Your skin rashes are not related to HIV infection

Detailed Answer:
Hi,
Welcome back.
ELISA test is a standard and reliable test for HIV. In normal individuals window period of HIV is not more than 12 weeks. Those who were on PEP, or taking immunosuppressive drugs like steroids may be likely to have the window period extended more than 90 days up to 180 days. So you need not worry about that. You are free from HIV 1 and 2 infection.
Your skin rashes are not related to HIV. Follow the advice of your Dermatologist for the skin rashes and get well soon.
Dr S Murugan

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Sankaranantham Murugan (9 days later)

Hi Doctor,

I am having stomach burning sensation ,mouth ulcer ,nausea problem too along with the skin rashes.I feel tired too. Am i scared these are the symptoms of HIV or what ? I have taken 4 test 35th day,73rd day, 115th day and 148th day after the exposure. Last two test were taken from the same lab rest all from different lab. All the test were HIV Antibody test . Please tell me doctor do i need to take test again.Today is my 162nd day after exposure.Is any test result changed after 145 days ?

Answered by Dr. Sankaranantham Murugan (8 hours later)

Brief Answer:
You are free from HIV infection.Your symptoms are not related to HIV.

Detailed Answer:
Hi,
Welcome to HCM.
Thanks for posting your query.
HIV antibody tests after 90 days is very much conclusive. You this test twice 90 days after the exposure. So it can be taken as 100% reliable.
Burning sensation of stomach, nausea, mouth ulcer and skin rashes are common to anybody without HIV and they are very common complaints even before the AIDS era. You need no further test for HIV. Your symptoms are not related to HIV. Consult a physician and get well soon.
Dr S.Murugan

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Sankaranantham Murugan (6 hours later)

Thank you doctor even I tested today for HIV antibody and got negative result that is on 163 day after exposure .

Answered by Dr. Sankaranantham Murugan (9 hours later)

Brief Answer:
You need no further test for HIV.

Detailed Answer:
Hi,
Welcome back.
You need no further test for HIV. I am sure that you will get a non reactive report how many times you have your test.
Dr S.Murugan

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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar